Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Peter Hambright"'
Autor:
Ivan Spasojevic, Peter Hambright, Ines Batinic-Haberle, Ayako Okado-Matsumoto, Robert Stevens, Irwin Fridovich, Pedatsur Neta
Publikováno v:
Dalton Trans.. :1696-1702
Three new Mn(III) porphyrin catalysts of O2˙− dismutation (superoxide dismutase mimics), bearing ether oxygen atoms within their side chains, were synthesized and characterized: Mn(III) 5,10,15,20-tetrakis[N-(2-methoxyethyl)pyridinium-2-yl]porphyr
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :139-146
The relative reactivities of the tetrakis( N -alkylpyridinium- X - yl )-porphyrins where X = 4 (alkyl = methyl, ethyl, n -propyl) , X = 3 (methyl) , and X = 2 (methyl, ethyl, n -propyl, n -butyl, n -hexyl, n -octyl) were studied in aqueous solution.
Autor:
Peter Hambright, Sabrina L. Bailey
Publikováno v:
Inorganica Chimica Acta. 344:43-48
The kinetics of incorporation of Cu2+, Zn2+, Co2+, and Ni2+ into the free base H2-BrP(4)4+ and centrally monoprotic H-BrP(4)3+ forms of the deformed and water soluble beta-octabromo-tetrakis(N-methyl-4-pyridyl)porphyrin were studied at 25 °C, I=0.10
Autor:
Peter Hambright, Sabrina L. Bailey
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :829-834
The kinetics of zinc incorporation from pH 12 to 13 into the centrally aprotic BrP (4)2+ form of beta-octabromo-meso-tetrakis(N-methyl-4-pyridyl)porphyrin and its monolithium complex were studied at 25.0 °C, ionic strength (I) = 0.10. The reactions
Autor:
Arthur N. Thorpe, Ines Batinic-Haberle, Irwin Fridovich, Ivan Spasojevic, Peter Hambright, Pedatsur Neta, J Grodkowski, Robert Stevens
Publikováno v:
Inorganic Chemistry. 40:726-739
A manganese(III) complex of biliverdin IX dimethyl ester, (MnIIIBVDME)2, was prepared and characterized by elemental analysis, UV/vis spectroscopy, cyclic voltammetry, chronocoulometry, electrospray mass spectrometry, freezing-point depression, magne
Autor:
Etsuko Fujita, Peter Hambright, J. Grodkowski, T Dhanasekaran, Bruce S. Brunschwig, P. Neta, K Shinozaki
Publikováno v:
The Journal of Physical Chemistry A. 104:11332-11339
The role of cobalt and iron phthalocyanines in catalytic CO2 reduction has been studied. Chemical, photochemical, and radiolytic reductions of the metal phthalocyanines (Pc) have been carried out in organic solvents, and reduction of their tetrasulfo
Autor:
Peter Hambright, Ray Hall Self
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :256-260
Equilibrium constants (1:1) for the reactions of cadmium(II) and lead(II) with water-soluble free base porphyrins of differing basicities (pK3) are reported. Soft porphyrins with low pK3 values favor the softer Cd (II), while harder porphyrins with h
Publikováno v:
The Journal of Physical Chemistry A. 103:7742-7748
Iron and cobalt porphyrins (FeP and CoP) are utilized as electron-transfer mediators to effect photochemical reduction of CO2 in homogeneous solutions. The species that activate and reduce CO2 are the Fe0P and Co0P formed by reduction of the starting
Publikováno v:
Langmuir. 15:3998-4004
The reductive electrochemistry of manganese(III) protoporphyrin IX dimethyl ester, Mn III (PPDME), in an aprotic solvent was studied using cyclic voltammetry, surface-enhanced Raman scattering spectroscopy (SERS), and thin layer potential dependent U
Autor:
R. Rahimi, Peter Hambright
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :493-499
The purpose of this project was to develop prophylactic water-soluble anti-cyanide drugs. The 24 h mean LD 50s in mice of 13 common metalloporphyrins and metallophthalocyanines are reported. At doses of 1/4, 1/16 and 1/64 of the LD 50 administered 15